from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An ecclesiastical banner, especially one carried in processions.
- n. The banner adopted by Constantine I after his conversion to Christianity.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The Roman military standard adopted by Constantine I. The banner was known for its Christian chi-rho sign - ☧.
from the GNU version of the Collaborative International Dictionary of English
- n. The standard adopted by the Emperor Constantine after his conversion to Christianity. It is described as a pike bearing a silk banner hanging from a crosspiece, and surmounted by a golden crown. It bore a monogram of the first two letters (ΧΡ) (which appear like the English letters X and P), of the name of Christ in its Greek form. Later, the name was given to various modifications of this standard.
from The Century Dictionary and Cyclopedia
- n. A Roman military standard adopted by the later emperors as the imperial standard.
- n. A standard or banner of similar form, borne in ecclesiastical processions of the Roman Catholic Church.
- n. Figuratively, a moral standard, guide, or device.
Late Latin, probably from alteration of Greek labrāton, laurel-leaf standard, from Latin laureātum, neuter of laureātus, adorned with laurel; see laureate.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin labarum, from Ancient Greek λαβαρόν (labaron). (Wiktionary)